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Memoize a selector

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This commit is contained in:
Jordan Eldredge 2018-08-02 20:55:59 -07:00
parent 410ad049b1
commit b5d8a56263
1 changed files with 4 additions and 3 deletions
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7
js/selectors.js
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@ -18,8 +18,9 @@ import * as fromPlaylist from "./reducers/playlist";
import * as fromDisplay from "./reducers/display";
import { generateGraph } from "./resizeUtils";
export const getEqfData = state => {
const { sliders } = state.equalizer;
export const getSliders = state => state.equalizer.sliders;
export const getEqfData = createSelector(getSliders, sliders => {
const preset = {
name: "Entry1",
preamp: denormalize(sliders.preamp)
@ -32,7 +33,7 @@ export const getEqfData = state => {
type: "Winamp EQ library file v1.1"
};
return eqfData;
};
});
export const getTracks = state => state.playlist.tracks;
const getTrackOrder = state => state.playlist.trackOrder;